Grundfos SCALA2 Manuale utente

SCALA2

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Other languages

http://net.grundfos.com/qr/i/98880508

Table of contents

SCALA2

English (GB)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

(AR)

   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions

These installation and operating instructions

describe Grundfos SCALA2 domestic water supply

pumps.

Sections 1-5 give the information necessary to be

able to unpack, install and start up the product in a

safe way.

Sections 6-14 give important information about the

product, as well as information on service, fault

finding and disposal of the product.

CONTENTS

Page

1. General information 5

1.1 Target group 5

1.2 Hazard statements 5

1.3 Notes 5

2. Receiving the product 5

2.1 Inspecting the product 5

2.2 Scope of delivery 5

3. Installing the product 5

3.1 Location 5

3.2 System sizing 6

3.3 Mechanical installation 6

3.4 Electrical connection 9

4. Starting up the product 10

4.1 Priming the pump 10

4.2 Starting the pump 10

4.3 How to set the correct pressure 11

4.4 Shaft seal run-in 11

5. Handling and storing the product 12

5.1 Handling the product 12

5.2 Storing the product 12

6. Product introduction 12

6.1 Product description 12

6.2 Intended use 12

6.3 Pumped liquids 12

6.4 Identification 13

7. Control functions 14

7.1 Menu overview, SCALA2 14

8. Setting the product 15

8.1 Setting the outlet pressure 15

8.2 Locking and unlocking the operating

panel 15

8.3 Expert settings, SCALA2 15

8.4 Resetting to factory settings 17

9. Servicing the product 17

9.1 Maintaining the product 17

9.2 Customer service information 18

9.3 Service kits 18

10. Starting up the product after standstill 19

10.1 Deblocking the pump 19

11. Taking the product out of operation 19

12. Fault finding the product 20

12.1 Grundfos Eye operating indications 20

12.2 Fault resetting 20

12.3 Fault finding chart 21

13. Technical data 24

13.1 Operating conditions 24

13.2 Mechanical data 24

13.3 Electrical data 24

13.4 Dimensions and weights 24

14. Disposing of the product 24

Read this document and the quick guide

before installing the product. Installation

and operation must comply with local

regulations and accepted codes of good

practice.

This appliance can be used by children

aged from 8 years and above and persons

with reduced physical, sensory or mental

capabilities or lack of experience and

knowledge if they have been given

supervision or instruction concerning use

of the appliance in a safe way and

understand the hazards involved.

Children shall not play with the appliance.

Cleaning and user maintenance shall not

be made by children without supervision.

English (GB)

1. General information

1.1 Target group

These installation and operating instructions are

intended for professional as well as non-professional

users.

1.2 Hazard statements

The symbols and hazard statements below may

appear in Grundfos installation and operating

instructions, safety instructions and service

instructions.

The hazard statements are structured in the

following way:

1.3 Notes

The symbols and notes below may appear in

Grundfos installation and operating instructions,

safety instructions and service instructions.

2. Receiving the product

2.1 Inspecting the product

Check that the product received is in accordance

with the order.

Check that the voltage and frequency of the product

match the voltage and frequency of the installation

site. See section 6.4.1 Nameplate.

2.2 Scope of delivery

The box contains the following items:

• 1 Grundfos SCALA2 pump

• 1 quick guide

• 1 safety instructions booklet.

3. Installing the product

3.1 Location

The pump can be installed indoors or outdoors, but it

must not be exposed to frost.

We recommend that you install the pump near a

drain or in a drip tray connected to a drain in order to

lead away possible condensation from cold surfaces.

3.1.1 Minimum space

The pump requires a minimum space of 430 x 215 x

325 mm (17 x 8.5 x 12.8 inches).

Even though the pump does not require much space,

we recommend that you leave enough space for

service and maintenance access.

3.1.2 Installing the product in frosty environment

Protect the pump from freezing if it is to be installed

outdoors where frost may occur.

DANGER

Indicates a hazardous situation which, if

not avoided, will result in death or serious

personal injury.

WARNING

Indicates a hazardous situation which, if

not avoided, could result in death or

serious personal injury.

CAUTION

Indicates a hazardous situation which, if

not avoided, could result in minor or

moderate personal injury.

SIGNAL WORD

Description of hazard

Consequence of ignoring the warning.

- Action to avoid the hazard.

Observe these instructions for

explosion-proof products.

A blue or grey circle with a white graphical

symbol indicates that an action must be

taken.

A red or grey circle with a diagonal bar,

possibly with a black graphical symbol,

indicates that an action must not be taken

or must be stopped.

If these instructions are not observed, it

may result in malfunction or damage to the

equipment.

Tips and advice that make the work easier.

Install the pump in such a way that no

undesirable collateral damage can arise

due to leakage.

If the unlikely event of an internal leakage

occurs, the liquid will be drained through

the bottom of the pump.

English (GB)

3.2 System sizing

The pump is factory-set to 3 bar (44 psi) outlet

pressure which can be adjusted according to the

system in which it is incorporated.

The tank precharge pressure is 1.25 bar (18 psi).

In case of suction lift of more than six metres, the

pipe resistance on the outlet side must be at least

two metres water column or 3 psi at any given flow in

order to obtain optimum operation.

3.3 Mechanical installation

3.3.1 Positioning the product

Always mount the pump on the base plate in a

horizontal position with a maximum inclination angle

of ± 5 °.

3.3.2 Foundation

Fasten the pump to a solid horizontal foundation by

means of screws through the holes in the base plate.

See figs 1 and 2.

Fig. 1 Horizontal foundation

Fig. 2 Base plate

3.3.3 Connecting the piping system

1. Turn the union nuts by hand to loosen the inlet

and outlet ports. See fig. 3.

2. Seal the pipe fittings with thread sealing tape.

3. Carefully screw the inlet and outlet connections

to the pipe fittings using a pipe wrench or similar

tool. Keep the union nut on the pipe fitting if you

have removed it from the pump.

The pump is equipped with flexible connections,

± 5 °, to facilitate the connection of inlet and

outlet pipes.

4. Fasten the connections to the inlet and outlet.

Hold the connection with one hand and tighten

the union nut with the other hand.

Fig. 3 How to fit the connections

Make sure that the system in which the

pump is incorporated is designed for the

maximum pump pressure.

DANGER

Electric shock

Death or serious personal injury

- Switch off the power supply before

starting any work on the product. Make

sure that the power supply cannot be

accidentally switched on.

TM06 5729 5315TM06 3809 1015

[mm (inches)]

A 181 (7.13)

B 130 (5.12)

C 144 (5.67)

Make sure that the pump is not stressed

by the piping system.

Always loosen and tighten the union nuts

on the inlet and outlet ports by hand.

Damage to the inlet and outlet parts

increases the risk of leakage.

TM06 4318 1915

Pos. Description

1 Inlet and outlet port

2 Union nut

3 Pipe fitting

English (GB)

3.3.4 How to reduce noise in the installation

Vibrations from the pump may be transferred to the

surrounding structure and create noise in the

20-1000 Hz spectrum, also called the bass

spectrum.

Correct installation using a vibration-damping rubber

pad, flexible hoses and correctly placed pipe

hangers for rigid pipes can reduce the noise

experienced by up to 50 %. See fig. 4.

Place pipe hangers for the rigid pipes close to the

connection of the flexible hose.

Fig. 4 How to reduce noise in the installation

3.3.5 Installation examples

Fittings, hoses and valves are not supplied with the

pump.

We recommend to follow the installation examples in

sections 3.3.6 to 3.3.8.

3.3.6 Mains water pressure boosting

Fig. 5 Mains water pressure boosting

We recommend to use flexible hoses and

mount the pump on a vibration-damping

rubber pad.

TM06 4321 1915

Rubber pad

Pipe hanger for rigid pipe

Flexible hose

TM06 4347 2015

Pos. Description

1 Highest tapping point

2 Pipe hangers and supports

3 Isolating valves

4 Flexible hoses

5 Bypass valve

Optional pressure-reducing valve on the

inlet side if the inlet pressure can exceed

10 bar (145 psi)

Optional pressure-relief valve on the outlet

side if the installation cannot withstand a

pressure of 6 bar (87 psi)

Drip tray. Install the pump on a small stand

to prevent the ventilation holes from being

flooded.

9 Pressure gauge

10 Mains water pipe

English (GB)

3.3.7 Suction from a well

Fig. 6 Suction from a well

3.3.8 Suction from freshwater tank

Fig. 7 Suction from freshwater tank

TM06 4349 4117

Pos. Description

1 Highest tapping point

2 Isolating valve

3 Flexible hoses

4 Pipe support

Inlet filter.

If the water may contain sand, gravel or

other debris, please install a filter on the

inlet side to protect the pump and

installation.

6 Foot valve with strainer (recommended).

H1 Maximum suction lift is 8 m (26 ft).

H2 Inlet pipe must be submersed at least 0.5

m (1.64 ft).

H2 H1

TM06 4348 4117

Pos. Description

1 Highest tapping point

2 Pipe hangers

3 Isolating valve

4 Flexible hoses

5 Drain to sewer

Inlet filter.

If the water may contain sand, gravel or

other debris, please install a filter on the

inlet side to protect the pump and

installation.

7 Freshwater tank

8 Foot valve with strainer (recommended)

A Minimum 1 ° inclination

English (GB)

3.3.9 Inlet pipe length

The overview below shows the different possible

inlet pipe lengths, depending on the vertical pipe

length.

The overview is only intended as a guide.

Fig. 8 Inlet pipe length

Preconditions:

3.4 Electrical connection

3.4.1 Motor protection

The pump incorporates current and temperature

dependent motor protection.

TM06 4372 4117

DN 32 DN 40

[m (ft)]

0 (0) 68 (223) 0 (0) 207 (679)

3 (10) 43 (141) 3 (10) 129 (423)

6 (20) 17 (56) 6 (20) 52 (171)

7 (23) 9 (30) 7 (23) 26 (85)

8 (26) 0 (0) 8 (26) 0 (0)

Maximum flow velocity: 1 l/s (16 gpm).

Inside roughness of pipes: 0.01 mm (0.0004 inch).

Size Inside pipe diameter

[mm (inches)]

Pressure loss

[m/m (psi/ft)]

DN 32 28 (1.1) 0.117 (5/100)

DN 40 35.2 (1.4) 0.0387 (1.6/100)

Carry out the electrical connection

according to local regulations.

Check that the supply voltage and

frequency correspond to the values stated

on the nameplate.

DANGER

Electric shock

Death or serious personal injury

- Switch off the power supply before

starting any work on the product. Make

sure that the power supply cannot be

accidentally switched on.

DANGER

Electric shock

Death or serious personal injury

- The pump must be earthed.

- The pump is supplied with a grounding

conductor and grounding-type

attachment plug. To reduce the risk of

electric shock, be certain that the pump

is connected only to a properly

grounded, grounding type receptacle

(protective earthing).

- If national legislation requires a

Residual Current Device (RCD), a

Ground Fault Circuit Interrupter (GFCI),

or equivalent in the electrical

installation, this must be type B

(according to UL/IEC 61800-5-1) or

better, due to the nature of the constant

DC leakage current.

If the power supply cable is damaged, it

must be replaced by the manufacturer, his

service agent or similarly qualified persons

in order to avoid hazard.

We recommend that you fit the permanent

installation with a residual-current circuit

breaker (RCCB) with a tripping current

less than 30 mA.

English (GB)

3.4.2 Plug connection

3.4.3 Connection without plug

4. Starting up the product

4.1 Priming the pump

1. Unscrew the priming plug and pour minimum 1.7

litres (0.45 gallons) of water into the pump

housing. See fig. 9.

2. Screw the priming plug on again.

4.2 Starting the pump

1. Open a tap to prepare the pump for venting.

2. Insert the power plug into the socket or turn on

the power supply and the pump will start.

3. When water flows without air, close the tap.

4. Open the highest tapping point in the installation,

preferably a shower.

5. Adjust the pressure setpoint to the required

pressure by means of the buttons. See

section 4.3 How to set the correct pressure.

6. Close the tapping point.

Startup has been completed.

Fig. 9 Priming the pump

DANGER

Electric shock

Death or serious personal injury

- Check that the power plug delivered

with the product is in compliance with

local regulations.

- Make sure that the pump is connected

only to a properly grounded,

grounding-type receptacle (protective

earthing).

- The protective earth of the power outlet

must be connected to the protective

earth of the pump. The plug must

therefore have the same PE connection

system as the power outlet. If not, use a

suitable adapter.

The electrical connection must be carried

out by an authorised electrician in

accordance with local regulations.

DANGER

Electric shock

Death or serious personal injury

- The pump must be connected to an

external main switch with a minimum

contact gap of 3 mm (0.12 inch) in all

poles.

Do not start the pump until it has been

filled with liquid.

If the suction depth exceeds 6 m (20 ft), it

may be necessary to prime the pump more

than once.

Always tighten priming and drain plugs by

hand.

TM06 4204 1615

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